SOUND OF SILENCE
ITA FIRST 31.7Sail number ITA/ITA14690
GPH
667.1
OSN
645.6
LOA
9.5 m
Displacement
3898 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6789
Medium
0.9346
High
1.0816
Triple Offshore
Low
0.8736
Medium
1.147
High
1.2917
Boat Specifications
Dimensions
- Length overall
- 9.5 m
- Beam
- 3.23 m
- Draft
- 1.93 m
- Displacement
- 3898 kg
- Crew weight
- 520 kg
- Wetted surface
- 22.22 m²
Sails
- Mainsail
- 26.54 m²
- Genoa
- 30.16 m²
- Spinnaker
- 62.97 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT
- Year built
- 1998
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.84 | 5.1 | 5.32 | 5.27 | 5.21 | 5.05 | 4.57 | 3.9 |
| 8 | 5.77 | 6.05 | 6.26 | 6.23 | 6.31 | 6.15 | 5.64 | 4.94 |
| 10 | 6.43 | 6.62 | 6.76 | 6.84 | 6.91 | 6.82 | 6.49 | 5.83 |
| 12 | 6.74 | 6.89 | 7.04 | 7.15 | 7.29 | 7.21 | 6.96 | 6.55 |
| 14 | 6.88 | 7.06 | 7.26 | 7.33 | 7.67 | 7.62 | 7.32 | 6.97 |
| 16 | 6.93 | 7.13 | 7.45 | 7.61 | 8.03 | 8.05 | 7.73 | 7.3 |
| 20 | 6.95 | 7.17 | 7.61 | 8.06 | 8.45 | 8.87 | 8.66 | 8.08 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.7° | 3.18 | 146.4° | 3.37 |
| 8 | 41.2° | 3.85 | 150.4° | 4.28 |
| 10 | 40.7° | 4.39 | 152.6° | 5.06 |
| 12 | 39° | 4.75 | 157.9° | 5.76 |
| 14 | 38.1° | 4.9 | 180° | 6.38 |
| 16 | 37.8° | 4.96 | 180° | 6.85 |
| 20 | 38.5° | 4.92 | 180° | 7.52 |
Loading polar chart…